package jdbc;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;

/**
 * 使用预编译SQL执行DML操作
 */
public class Demo9 {
    public static void main(String[] args) {
        try (Connection connection = DBUtil.getConnection();){
            String sql = "INSERT INTO user(username,paasword,nicename,age) " +
                    "VALUES(?,?，?，?)";
             PreparedStatement ps  = connection.prepareStatement(sql);
             ps.setString(1,"张三");
             ps.setString(2,"123456");
             ps.setString(3,"阿三");
             ps.setInt(4,35);
             int num = ps.executeUpdate();
            System.out.println((num>0?"插入成功":"插入失败"));
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}
